Lot 455. A 'Guan'-type cong vase, Guangxu mark and period (1875-1908). Height 10 3/4 in., 27.5cm. Estimate 6,000 — 8,000 USD. Lot sold 23,750 USD. Photo Sotheby's

of archaic jade form, the square section straight-sided body rising from a short spreading circular foot to a narrow tapering circular neck, molded to each side with the bagua (Eight Trigrams), in two tiers, covered overall in a crackled pale green glaze, six-character mark in underglaze blue. 

Sotheby's. Fine Chinese Ceramics & Works of Art. New York | 18 Mar 2014, 10:30 AM